1 /* Functions related to building resource files.
2 Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
3 2007 Free Software Foundation, Inc.
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3, or (at your option)
12 GCC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING3. If not see
19 <http://www.gnu.org/licenses/>.
21 Java and all Java-based marks are trademarks or registered trademarks
22 of Sun Microsystems, Inc. in the United States and other countries.
23 The Free Software Foundation is independent of Sun Microsystems, Inc. */
27 #include "coretypes.h"
32 #include "java-tree.h"
43 #include "tree-iterator.h"
46 /* DOS brain-damage */
48 #define O_BINARY 0 /* MS-DOS brain-damage */
51 /* A list of all the resources files. */
52 static GTY(()) tree resources
= NULL
;
54 /* Count of all the resources compiled in this invocation. */
55 static int Jr_count
= 0;
58 compile_resource_data (const char *name
, const char *buffer
, int length
)
60 tree rtype
, field
= NULL_TREE
, data_type
, rinit
, data
, decl
;
63 data_type
= build_prim_array_type (unsigned_byte_type_node
,
64 strlen (name
) + length
);
65 rtype
= make_node (RECORD_TYPE
);
66 PUSH_FIELD (rtype
, field
, "name_length", unsigned_int_type_node
);
67 PUSH_FIELD (rtype
, field
, "resource_length", unsigned_int_type_node
);
68 PUSH_FIELD (rtype
, field
, "data", data_type
);
69 FINISH_RECORD (rtype
);
70 START_RECORD_CONSTRUCTOR (rinit
, rtype
);
71 PUSH_FIELD_VALUE (rinit
, "name_length",
72 build_int_cst (NULL_TREE
, strlen (name
)));
73 PUSH_FIELD_VALUE (rinit
, "resource_length",
74 build_int_cst (NULL_TREE
, length
));
75 data
= build_string (strlen(name
) + length
, buffer
);
76 TREE_TYPE (data
) = data_type
;
77 PUSH_FIELD_VALUE (rinit
, "data", data
);
78 FINISH_RECORD_CONSTRUCTOR (rinit
);
79 TREE_CONSTANT (rinit
) = 1;
80 TREE_INVARIANT (rinit
) = 1;
82 /* Generate a unique-enough identifier. */
83 sprintf (buf
, "_Jr%d", ++Jr_count
);
85 decl
= build_decl (VAR_DECL
, get_identifier (buf
), rtype
);
86 TREE_STATIC (decl
) = 1;
87 DECL_ARTIFICIAL (decl
) = 1;
88 DECL_IGNORED_P (decl
) = 1;
89 TREE_READONLY (decl
) = 1;
90 TREE_THIS_VOLATILE (decl
) = 0;
91 DECL_INITIAL (decl
) = rinit
;
92 layout_decl (decl
, 0);
94 rest_of_decl_compilation (decl
, global_bindings_p (), 0);
95 varpool_finalize_decl (decl
);
97 resources
= tree_cons (NULL_TREE
, decl
, resources
);
101 write_resource_constructor (tree
*list_p
)
103 tree iter
, t
, register_resource_fn
;
105 if (resources
== NULL
)
108 t
= build_function_type_list (void_type_node
, ptr_type_node
, NULL
);
109 t
= build_decl (FUNCTION_DECL
, get_identifier ("_Jv_RegisterResource"), t
);
111 DECL_EXTERNAL (t
) = 1;
112 register_resource_fn
= t
;
114 /* Write out entries in the same order in which they were defined. */
115 for (iter
= nreverse (resources
); iter
; iter
= TREE_CHAIN (iter
))
117 t
= build_fold_addr_expr (TREE_VALUE (iter
));
118 t
= build_call_expr (register_resource_fn
, 1, t
);
119 append_to_statement_list (t
, list_p
);
123 /* Generate a byte array representing the contents of FILENAME. The
124 array is assigned a unique local symbol. The array represents a
125 compiled Java resource, which is accessed by the runtime using
128 compile_resource_file (const char *name
, const char *filename
)
130 struct stat stat_buf
;
134 fd
= open (filename
, O_RDONLY
| O_BINARY
);
137 perror ("Failed to read resource file");
140 if (fstat (fd
, &stat_buf
) != 0
141 || ! S_ISREG (stat_buf
.st_mode
))
143 perror ("Could not figure length of resource file");
146 buffer
= XNEWVEC (char, strlen (name
) + stat_buf
.st_size
);
147 strcpy (buffer
, name
);
148 read (fd
, buffer
+ strlen (name
), stat_buf
.st_size
);
151 compile_resource_data (name
, buffer
, stat_buf
.st_size
);
154 #include "gt-java-resource.h"